This table contains entries for a1-antitrypsin and related serpin family members for a few representative organisms from the UniProt database, with links to view the original protein entries.
 
 
| 
   | 
  
  UniProt entry
   | 
  
   Protein name  | 
  
   Organism  | 
  
   Function  | 
 
| 
   a1-antitrypsin  | 
  
   Alpha-1-antitrypsin  | 
  
   Homo
  sapiens  | 
  
   Inhibits elastase  | 
 |
| 
      | 
  
   Alpha-1-antiproteinase  | 
  
   Bos Taurus Bovine  | 
  
   Inhibits elastase  | 
 |
| 
      | 
  
   Alpha-1-antiproteinase  | 
  
   Rattus norvegicus Rat  | 
  
   Inhibits elastase  | 
 |
| 
      | 
  
   Alpha-1-antitrypsin
  1-1  | 
  
   Mus musculus Mouse  | 
  
   Inhibits elastase  | 
 |
| 
      | 
  
   Alpha-1-antitrypsin
  1-2  | 
  
   Mus musculus Mouse  | 
  
   Inhibits elastase  | 
 |
| 
      | 
  
   Alpha-1-antitrypsin
  1-3  | 
  
   Mus musculus Mouse  | 
  
   Inhibits elastase  | 
 |
| 
      | 
  
  
      | 
  
   Alpha-1-antitrypsin
  1-4  | 
  
   Mus musculus Mouse  | 
  
   Inhibits elastase  | 
 
| 
      | 
  
   Alpha-1-antitrypsin
  1-5  | 
  
   Mus musculus Mouse  | 
  
   Inhibits elastase  | 
 |
| 
      | 
  
   Alpha-1-antitrypsin
  1-6  | 
  
   Mus musculus Mouse  | 
  
   Inhibits elastase  | 
 |
| 
   Other inhibitory serpins  | 
  
   Alpha-1-antitrypsin-related
  protein  | 
  
   Homo
  sapiens  | 
  
   May be a pseudogene  | 
 |
| 
      | 
  
   Alpha-2-antiplasmin  | 
  
   Homo
  sapiens  | 
  
   Inhibits plasmin and trypsin  | 
 |
| 
      | 
  
   Alpha-1-antichymotrypsin  | 
  
   Homo
  sapiens  | 
  
   Inhibits neutrophils cathepsin G and mast
  cell chymase  | 
 |
| 
      | 
  
   Antithrombin-III  | 
  
   Homo sapiens  | 
  
   Regulates blood coagulation cascade  | 
 |
| 
      | 
  
   Heparin cofactor II  | 
  
   Homo
  sapiens  | 
  
   Regulates blood coagulation cascade  | 
 |
| 
      | 
  
   Plasma protease
  C1 inhibitor  | 
  
   Homo sapiens  | 
  
   Regulation of complement activation, blood coagulation,
  fibrinolysis and the generation of kinins  | 
 |
| 
      | 
  
   Plasma serine
  protease inhibitor  | 
  
   Homo sapiens  | 
  
   Inhibits activated protein C and plasminogen activators  | 
 |
| 
      | 
  
   Kallistatin  | 
  
   Homo
  sapiens  | 
  
   Inhibits amidolytic and kininogenase activities of human
  tissue kallikrein  | 
 |
| 
      | 
  
   Neuroserpin  | 
  
   Homo
  sapiens  | 
  
   Formation or reorganization of synaptic connections and
  synaptic plasticity  | 
 |
| 
      | 
  
   Plasminogen
  activator inhibitor-1  | 
  
   Homo
  sapiens  | 
  
   Regulation of fibrinolysis  | 
 |
| 
      | 
  
   Serpin I2 (Pancpin)  | 
  
   Homo
  sapiens  | 
  
   Pancreatic tumour repressor  | 
 |
| 
      | 
  
   Protein
  Z-dependent protease inhibitor  | 
  
   Homo
  sapiens  | 
  
   Inhibits factor Xa  | 
 |
| 
   Iintracellular
  serpins   | 
  
   Leukocyte elastase inhibitor  | 
  
   Homo sapiens  | 
  
   Regulation of neutrophil proteases  | 
 |
| 
   (ov-serpin
  family)  | 
  
   Maspin  | 
  
   Homo sapiens  | 
  
   Tumour suppressor, prevents metastasis  | 
 |
| 
      | 
  
   Plasminogen
  activator inhibitor-2  | 
  
   Homo
  sapiens  | 
  
   Tissue-type
  plasminogen activator, intracellular signalling  | 
 |
| 
      | 
  
   Placental thrombin inhibitor  | 
  
   Homo
  sapiens  | 
  
   Inhibits thrombin  | 
 |
| 
      | 
  
   Bomapin  | 
  
   Homo
  sapiens  | 
  
   Haematopoiesis  | 
 |
| 
      | 
  
   Serpin B11  | 
  
   Homo
  sapiens  | 
  
      | 
 |
| 
      | 
  
   Serpin B12  | 
  
   Homo sapiens  | 
  
   Inhibits trypsin and plasmin  | 
 |
| 
      | 
  
   Hurpin  | 
  
   Homo sapiens  | 
  
   Proliferation or differentiation of keratinocytes  | 
 |
| 
      | 
  
   Squamous cell
  carcinoma antigen 1  | 
  
   Homo sapiens  | 
  
   Modulates immune response towards tumours  | 
 |
| 
      | 
  
   Squamous cell
  carcinoma antigen 2  | 
  
   Homo sapiens  | 
  
   Modulates immune response towards tumours  | 
 |
| 
      | 
  
   Megsin  | 
  
   Homo sapiens  | 
  
   Maturation of megakaryocytes  | 
 |
| 
      | 
  
   Cytoplasmic antiproteinase 2  | 
  
   Homo
  sapiens  | 
  
   Furin  | 
 |
| 
      | 
  
   Cytoplasmic antiproteinase 3  | 
  
   Homo
  sapiens  | 
  
   Granzyme B inhibitor  | 
 |
| 
   Non-inhibitory
  serpins  | 
  
   Angiotensinogen  | 
  
   Homo
  sapiens  | 
  
   Blood pressure regulation, hormone precursor  | 
 |
| 
      | 
  
   Corticosteroid-binding globulin  | 
  
   Homo
  sapiens  | 
  
   Hormone carrier (glucorticoids and progestins)  | 
 |
| 
      | 
  
   Glia derived nexin  | 
  
   Homo
  sapiens  | 
  
   Promotes neurite extension  | 
 |
| 
      | 
  
   47 kDa heat shock protein  | 
  
   Homo sapiens  | 
  
   Molecular chaperone for collagen  | 
 |
| 
      | 
  
   Pigment epithelium-derived factor  | 
  
   Homo
  sapiens  | 
  
   Induces neuronal differentiation in retinoblastoma cells;
  inhibitor of angiogenesis  | 
 |
| 
      | 
  
   Collagen-binding
  protein 2  | 
  
   Homo
  sapiens  | 
  
   Molecular chaperone for collagen  | 
 |
| 
      | 
  
   Thyroxine-binding globulin  | 
  
   Homo
  sapiens  | 
  
   Thyroid hormone transport  |